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Finding the Fourth Proportional to 66,207.60, 91,366.32 and 35,992.92

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Solution

The fourth proportional to 66,207.60, 91,366.32 and 35,992.92 is: 49,670.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,207.60 : 91,366.32 = 35,992.92 : x
  2. Step 2: Convert to fraction form
    66,207.60/91,366.32 = 35,992.92/x
  3. Step 3: Cross multiply
    66,207.60x = 91,366.32 × 35,992.92
  4. Step 4: Simplify right side
    66,207.60x = 3,288,540,646.45
  5. Step 5: Solve for x
    x = 3,288,540,646.45/66,207.60
  6. Step 6: Final answer
    x = 49,670.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.